Part 4/21:
Magnetic Pixel Displays: Inspired by Squids
Researchers at the University of Michigan have created a unique screen that stores and displays images without any electronics, inspired by the color-changing abilities of squids. The technology works by channeling the force of magnetic fields, where tiny colored balls in white and orange act as pixels. When a magnetic field is applied, the balls rotate to form an image. The result is an ultra-compact, power-independent screen. The potential applications are vast, from camouflage systems to e-readers. Additionally, the creators note that the screens can be set to display data only when interacting with specific magnets, providing protection against hacking.